Home / 315,820.02-435,837.33-172,586.10

Finding the Fourth Proportional to 315,820.02, 435,837.33 and 172,586.10

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Solution

The fourth proportional to 315,820.02, 435,837.33 and 172,586.10 is: 238,171.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,820.02 : 435,837.33 = 172,586.10 : x
  2. Step 2: Convert to fraction form
    315,820.02/435,837.33 = 172,586.10/x
  3. Step 3: Cross multiply
    315,820.02x = 435,837.33 × 172,586.10
  4. Step 4: Simplify right side
    315,820.02x = 75,219,465,019.11
  5. Step 5: Solve for x
    x = 75,219,465,019.11/315,820.02
  6. Step 6: Final answer
    x = 238,171.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.